Device for storing and dispensing a flowable substance

Abstract

The present invention relates to a device for storing and dispensing a flowable substance. The device comprises a container comprising a base member and a cover member being sealingly connected with each other along the circumference of the container, a compartment for receiving the substance, and an open ended pocket area into which the substance is transferable from the compartment, and a cannula having an internal passageway being in fluid communication with the pocket for dispensing the substance.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is a national stage filing under 35 U.S.C. 371 of PCT / EP2004 / 011876, filed Oct. 20, 2004, which International Application was published by the International Bureau in English on May 6, 2005, which claims priority to EP 03024398.4, filed Oct. 24, 2003.FIELD OF THE INVENTION[0002]The present invention relates to a device for storing and dispensing a flowable substance. In particular, the present invention relates to a device for storing and dispensing a flowable liquid being a dental substance for tooth treatment.BACKGROUND OF THE INVENTION[0003]For storing and applying a small quantity of a liquid, a commercially available device includes a container in the form of a so-called “blister package”. Two separate recesses are formed in a deep-drawn part of the package which is closed by a removable sheet. Upon removal of the sheet, the two container recesses are exposed so that a brush can be taken out and used to apply the liquid to the t...

AI Technical Summary

Benefits of technology

[0009]Preferably, the extension part has a cross-sectional shape comprising sharp edges in the plane between the base member and the cover member, and more preferably comprises a rhombic, triangular or fin-like cross-sectional shape. This cross-sectional shape (in a plane perpendicular to the longitudinal axis of the cannula) of the extension part provides a smooth transition between the extension part and the surrounding base and cover member, and the sharp edges help to avoid hollow spaces between the base member and the cover member, because the sharp edges lie in the plane between the base and the cover member.

[0034]In a further preferred embodiment of the present invention, the device further comprises two compartments for holding different substances, and a passage area adapted to be selectively opened for placing said compartments in communication with each other. This arrangement is specifically suited for substances to be mixed from components which react with each other. A zone of reduced lateral width may be provided between the compartments to facilitate the compartment which is emptied first to be bent upon the second compartment, thereby preventing the substance from flowing back into the first compartment.

Problems solved by technology

For indications requiring a higher volume of liquid for the treatment a brush may be, however, disadvantageous because the amount of liquid which can be transferred from the package to the location of treatment is limited to the absorbability of the brush.

Furthermore, once a brush is wetted with liquid, the absorbability decreases tremendously, thus becoming nearly useless for transferring further liquid.

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